Tank the season, sell the players you do not whant to keep, and reduce the squad to only 14 to 16 players, try to rebalance your finance.

Other option is like it was writhen, create other account and play friendlies, or if you have the luck to hav a friend with a abandoned team even better, to do that you need 22 players squad, to not risk injurys in your Best players, buy free agents or older players.
You then can win boosters and money from the tickets.